Global Patent Index - EP 0385346 A3

EP 0385346 A3 19911121 - SPATIAL LIGHT MODULATOR AND SPATIAL MODULATING APPARATUS

Title (en)

SPATIAL LIGHT MODULATOR AND SPATIAL MODULATING APPARATUS

Publication

EP 0385346 A3 19911121 (EN)

Application

EP 90103699 A 19900226

Priority

  • JP 4571689 A 19890227
  • JP 15412789 A 19890616

Abstract (en)

[origin: EP0385346A2] A spatial light modulator has a photoconductive layer (4A) deposited on one glass substrate (1A) having a transparent electrode. A first liquid crystal alignment film (5A) is formed on the photoconductive layer (4A). A second liquid crystal alignment film (8A) is formed on another glass substrate (2A) having another transparent electrode. A ferroelectric liquid crystal (10A) is filled between the first and second liquid crystal alignment films (6A, 8A).

IPC 1-7

G02F 1/135

IPC 8 full level

G02F 1/135 (2006.01); G02F 1/141 (2006.01)

CPC (source: EP US)

G02F 1/135 (2013.01 - EP US); G02F 1/141 (2013.01 - EP US)

Citation (search report)

  • [X] GB 2181263 A 19870415 - STC PLC
  • [Y] WO 8901174 A1 19890209 - HUGHES AIRCRAFT CO [US]
  • [XP] EP 0334340 A2 19890927 - SEIKO INSTR INC [JP]
  • [Y] PROCEEDINGS OF THE SID, vol. 29, no. 4, 1988, pages 255-258; S. MATSUMOTO et al.: "Large-area video-rate multicolor ferroelectric LCD"
  • [X] MOLECULAR CRYSTALS & LIQUID CRYSTALS, vol. 144, March 1987, pages 309-316; D. ARMITAGE et al.: "Ferroelectric liquid crystal spatial light modulator"
  • [Y] JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 28, no. 1, January 1989, pages L116-L118; K. NAKAYA et al.: "Electrooptic bistability of a ferroelectric liquid crystal device prepared using charge-transfer complex-doped polyimide-orientation films"

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0385346 A2 19900905; EP 0385346 A3 19911121; EP 0385346 B1 19980923; DE 69032669 D1 19981029; DE 69032669 T2 19990610; EP 0666493 A1 19950809; US 5130830 A 19920714

DOCDB simple family (application)

EP 90103699 A 19900226; DE 69032669 T 19900226; EP 95105929 A 19900226; US 48522690 A 19900226